Why is summer called dog days?

Calling the hottest day in summer "dog days" originated from the State of Qin in the Spring and Autumn Period. In Liu's Historical Records, he said: "Qin Degong first fell in the second year (676 BC)."

Summer solar terms are in the "three volts", which is the period with the most sunshine and the highest temperature in China. Most parts of the country are dry and lack of rain, and the temperature in many areas is above 35 degrees, so the so-called "three stoves" are also the most prosperous.

Summer is one of the twenty-four solar terms of the lunar calendar, and the sun is located in the yellow meridian 120. In the hot summer, China people have the custom of drinking tea, drying ginger, burning incense and drinking mutton soup.

Everyone knows that it is hot in dog days. Summer heat is generally in the middle of three volts. At this time, most parts of China are in the hottest stage of the year, and the temperature difference across the country is not big.

In some provinces, the extreme maximum temperature in July appeared in late July, and in most provinces, the extreme maximum temperature in August appeared in early August, which happened to be in the hot summer of July and the next August.